VSPEX Blue is EMC’s EVO:RAIL. They have made enough modifications to warrant a special mention but they haven’t tried to include any storage ‘appliance’ unlike NetApp so the base EVO architecture remains unchanged. Sorry this isn’t a dig at NetApp but stating the obvious. Duncan Epping has a lot of useful information about EVO:RAIL and Cormac Hogan has an excellent blog series about VMware VSAN. So I am not going to explain what EVO:RAIL architecture is and how VMware VSAN works. (more…)